System and method for a modular user controlled search engine

ABSTRACT

Method and system for delivery of personal search services and advertising. The method includes collecting information from the user about the user&#39;s personal search engine, including, but not limited to digital content data sources, link crawl depth of those digital content data sources, and time interval to refresh the index of the digital content data sources created. In one embodiment of the present invention users do not pay a fee in return for allowing the provider to present advertising to the user as the user uses the invention. In another embodiment, advertisers purchase advertising display services from the provider to be displayed to specific users.

RELATED APPLICATIONS

This application is a continuation of, and claims priority to, U.S.patent application Ser. No. 13/159,395, filed Jun. 13, 2011, nowallowed, which in turn claims priority to, U.S. patent application Ser.No. 12/149,540, filed May 2, 2008, now allowed, which in turn claimspriority to, U.S. patent application Ser. No. 11/101,534, filed Apr. 8,2005, now U.S. Pat. No. 7,386,572, which in turn claims priority to U.S.Provisional Patent Application No. 60/561,874, filed Apr. 14, 2004, allof which are expressly incorporated herein by reference in theirentirety.

FIELD OF THE INVENTION

The present invention relates to a system and method for indexingdigital content resource files and searching that index. In particular,the present invention relates to a system and method for users tocontrol how the index is built and the digital content resource filesfrom which it is built.

BACKGROUND OF THE INVENTION

The World Wide Web (the Web) represents all of the computers on theInternet that offer user access to information on the Internet viainteractive documents or Web pages, which are digital content resourcefiles. Web information resides on Web servers on the Internet or withincompany networks. Web client machines running Web browsers or otherInternet software can access these Web pages via a communicationsprotocol known as Hypertext transport protocol (HTTP). With theproliferation of information on the Web and information accessible incompany networks, it has become increasingly difficult for users tolocate and effectively use this information. The reason for this is thatthere is too much information for search engines to update their indexto reflect every change on every digital content data resource in atimely fashion.

The full text index is created by the search engine's software fromdigital content resources retrieved by their crawler software from thesite. It enables the returned digital content resource to be searched bykeywords, which point to the original site from which the digitalcontent with that keyword was obtained. Search engines have proprietaryalgorithms which order the search results for a given keyword byrelevance and display the sites in the order of most relevant to leastrelevant. Different algorithms can yield widely differing results andeven the best algorithms have trouble determining the context of thesearch term. The process of retrieving the digital content from manydifferent web sites and creating a full text index is resource and timeintensive requiring significant computer resources and bandwidth when alarge number of site indexes need to be updated. Public search enginescontain a very large number of sites, which makes updating their index asignificant and expensive endeavor. The general solution to this problemby the search engines is to allocate their scarce resources by limitingthe update frequency of most of the sites in their index. Only the sitesdeemed most “important” by the search engine will have their indexesupdated frequently. The information in the index of commercial searchengines currently in the practice of the art for the vast majority ofsites will be one to three months old. Even though a given site may notbe important to the commercial search engines currently in the practiceof the art that site could be very important to a searcher who mightrequire the most current information from that site.

The result of these circumstances is that sites not highly rated byautomatic algorithms used by commercial search engines currently in thepractice of the art may not be updated in a timely manner, even if fileson the site have been updated. Since commercial search engines useautomatically executed algorithms to determine which sites are suitablefor inclusion in their index, and how often to refresh the index of anygiven site, Web sites containing useful information may not be listed,listed early enough, or listed in a sufficiently timely manner in theindex or the search results to be discovered by interested searchers. Asa result, searchers may not be able to find important informationbecause it is not in the search engine index and therefore cannot beretrieved or the relevancy of the result is ranked so low by the searchengine that the searcher would have to go through hundreds or eventhousands of listings to find the information they want. This is highlyinefficient from the searcher's perspective. The current inventionsolves these problems for the searcher.

In addition, commercial search engines refresh their index data at arate that is not suitable for many applications that require timelyinformation, such as finance, political issue tracking, business newsanalysis and other subjects, such as those pertaining to health issues.

There are currently two types of digital content index and searchavailable, non-customizable search and customizable search. Both placelimits and burdens on the searcher that may result in availableinformation not being found.

Standard search engines give the searcher no control over theinformation resources (digital content files) that are included in thesearch engine, how frequently the index is updated or the depth of thelinks included in the index. Searchers can suggest digital contentresource data files to be included but there is no guarantee that theywill be included. Instead, the search engine's management controls whichdigital content resource data files will be included. Search and rankingis usually done using some proprietary algorithm. These algorithms arefrequently changed without notification of search users, and,consequently, Web sites can disappear without notice from a searcher'slist of results. Furthermore, because a proprietary algorithm is used,the effects of these changes cannot be accurately understood, orcompensated for, by searchers. As a result the searcher may not be awareof important information because it is not in the search engine's indexof results.

There are some customizable search engines. However, all of thecustomizable search engines have limitations and/or create burdens forthe searcher. Customizable search engines which use personal computersas the platform for the search software permit the searcher to choosethe digital content information resources (e.g., magnetic or opticallystored files) to include in the index. The user can also designate whento refresh the index and can set the link depth to include in the index,however there are burdens. The user must install the “customizablesearch engine software” on their computer. When the software retrievesdigital content resource data files for the index it may overload theuser's network connection or make the connection unavailable for otheruses, potentially for long periods. As a result, such software is highlylikely to prevent users from performing other tasks while the softwareruns. The search and index function in personal computer-basedcustomizable search software uses the personal computer's processor,memory and hard disk, which limits search power and index size to thehardware on that personal computer. Thus, personal computer-basedcustomizable search software may keep the user from being able performother functions on that personal computer due to insufficient resources.Due to the previously enumerated burdens, this type of customizablesearch software has serious usability drawbacks for the user.

SUMMARY OF THE INVENTION

The present invention provides a method for indexing and searchingdigital content resource data files that is easy and more efficient forthe user to use and overcomes drawbacks of conventional systems.

In one embodiment of the present invention, the user can control allmajor characteristics of building the full text indexes from a standarduser interface. These characteristics include the digital content dataresource files to be indexed, the refresh time interval for the indexand the maximum link depth to follow from the initial digital contentdata resource files for the index. This allows the user to avoidinstalling any software or knowing how to program a computer. Thestandard user interface can be employed by any browser capable devicesuch as cell phones, PDAs, computers, etc. The user merely enters theirdigital content resource information, crawl depth criteria and refreshcriteria into the user interface and this information is passed to theproper software components to build the full text index. The user canchoose to either pay for the ability to create a personalized searchableindex, or use the free advertising supported version of the invention.Because there is a free version, anyone with access to a network can useit without expense. This will make it especially useful for students andothers with limited resources.

Since the user can control the refresh rate for the searchable full textindex, the information in the index will be timelier than that innon-customizable search engines. The user only includes the digitalcontent data resources that are of interest to his or her research,making the searchable full text index more accurately targeted to theresearch topic. For example, if a user is performing research on aparticular industry, the user would only include sites in the index thatpertain to that industry. By setting the depth of the links to followthe user can create a very inclusive index of those sites by followingtheir links deeply.

The search results will be more contextually relevant because a user whois interested in the subject matter chooses the digital content dataresources. A person has a much greater ability to understand contextthan software algorithms. In this embodiment, the searcher will chosethe digital content data resources, which ensures that they arecontextually relevant and the search will find more contextuallyrelevant results. For example, conventional software algorithms such asGoogle's Page Rank algorithm do not understand context If a user islooking for “rose pictures,” a search engine such as Google wouldinclude pictures of Axel Rose, the rock star in the results, even thoughthe user is only looking for pictures of roses that are flowers. Aperson would immediately know that a picture of Axel Rose is not apicture of a flower, but search algorithms do not.

In another embodiment of the present invention, the user can build theirindex with only digital content data resources that pertain to picturesof roses that are flowers. This is easy for a user to determine butnearly impossible for standard search engines to determine accurately.

Since most Web sites have a page with links to related sites, followinglinks deeply from the original digital content data resources can alsobe used to discover new contextual digital content informationresources. Furthermore, the Internet in general and the World Wide Webin particular serve as platforms for display and retrieval of specificinformation placed for public access by persons having expertise inspecific areas of knowledge, the content of which is moderated by thosewho access that information. Thus, both the Internet and World Wide Webare organized into loosely-knit, self-selecting communities ofcontextual knowledge experts. Facilitation of these attributes of theInternet, World Wide Web, and potentially of other network media, willhelp users to avoid the confusion inherent in current search engineresult lists, making it less likely, for example, that a search forpictures of roses will return a picture of Axel Rose. Discovery ofdigital content information data in context offers higher quality,greater relevance and considerable advantage for its interpretation anduse. In this way, the search user can discover new contextual knowledgeabout a subject. This cannot be done with standard web search engines.

Another embodiment of the present invention provides a customizablesearch engine that is easy to use. The user does not need to know how toprogram or have any special technical knowledge of computers. The userdoes not need to install any software to use this invention. This methoddoes not render the user's computer, devices, resources or Internetconnection unusable while it performs indexing. The user does not evenneed to have their own computer. It can be used from any device withInternet access including computers at schools or libraries and mobiledevices. The advertising supported version can be free making it idealfor students. It is also easy to use because all the characteristics ofthe full text index are described in terms the user can understandwithout the need for any special technical knowledge on the part of theuser.

Another embodiment provides a modular search engine that is moreflexible than existing Internet search engines. The search engine canhave modular software components. This allows replacement of individualmodules without replacing the entire search engine or changing the userinterface. For example, the software module that follows links may bereplaced by another piece of software if it is found to have superiorlink following capabilities to crawl such things as dynamic digitalcontent or links. The actual search module can also be swapped out andreplaced with another module as required to support, among other things,digital content data resource files in different languages. ConventionalInternet search engines rely on their own proprietary crawler, searchand index methods. If the method is not well suited to what is beingindexed, it cannot be changed easily. Consequently, users are deprivedof the ability to find information they need, being placed instead atthe mercy of individuals who program the conventional search engines,persons who have little knowledge or understanding of the user'sultimate requirements. The fact that the components can be changedwithout changing the user interface also makes it easier for the userbecause they can get the benefit of components better suited to theirsearch requirements without having to learn a new user interface for thesearch engine they are using.

Another embodiment provides for advertising supported personal search.In this embodiment, the audience for the advertisements is more likelyto be interested in the advertisements and act on them becauseadvertisements can be targeted to the users based on information thatthey provided when they registered, including but not limited todemographic and psycho graphic information, the category of what theyare searching for, the keywords they are searching for, and the actualdigital content resource data files they are searching. This providesmany ways to target the user's interests.

In another embodiment, the system includes the following components: auser interface, a place to store information about the user and theuser's searchable index, a component that can crawl the digital contentdata resources according to the criteria set by the user, a searchablefull text index, a component that can search that index, a component toserve advertising for the advertising sponsored version, and a componentto manage the sale of advertising for the advertising sponsored versionand sale of the service for fees. The user interface component runs onthe user's Internet capable computer or device. All the other componentsrun on a server or group of servers. The user interface and the servercomponents are connected via a network.

In another embodiment, the user interface component is where the usercreates, changes, manages, and performs searches on the personal searchengine. In the advertising supported version advertisements can bedisplayed on the user interface while the user is doing this.

The user signs up for the service via the user interface. The user canchoose to sign up for the free or paid version of personal search. Theuser interface component collects the required information for the typeof service the user has chosen. Once signup is complete the userinterface collects the search engine characteristics from the user.These characteristics may include, but are not limited to, the digitalcontent data resource files to search, the depth to follow links fromthe starting point and the time interval to refresh the information.Once the index is built, the user is able to search the index that hasbeen created via the user interface. The user interface is connected tothe index via a network. Advertisements may be displayed to the userwhile they are logged in based on information obtained from them. Thismay be done by the advertising server component.

In another embodiment, the user's signup and search enginecharacteristics information gathered via the user interface is stored inthe database component on the server. The characteristics informationmay be transmitted from the network device, such as a PC, to the servervia a network connection. The server may retrieve that informationwhenever it is needed, for example, when a user of the advertisingsupported version is logged in. The information stored in the databasemay comprise a user's login, identification, interests and account typeinformation, digital content data resource files to search, the depth tofollow links from the starting point and the time interval to refreshthe information.

When it is time to do the initial crawl or refresh the information for auser's search engine the digital content data resource files to search,and the depth to follow links from the starting point are retrieved fromthe database by the crawler component and used to crawl the digitalcontent information resource files chosen by the user. The crawlercomponent accesses the digital content resource data files to crawl viaa network. The output of the crawler component is the full text indexfor the user's search engine. This index is stored on a server. When thecrawl is over the database is updated to reflect that a refresh of thesearch engine has occurred.

The information in the full text index is now ready to be searched bythe search component. The user enters the search criteria and the searchcomponent retrieves references to it. In another embodiment, a pure textsearch engine may be used due to its great accuracy for smallcollections of digital content resources. However, embodiments of thisinvention are not limited to the use of a pure text search engine. Forexample, an engine that uses a ranking algorithm could be employed. Thesearch engine component may reside on a server or servers andcommunicates with the user interface component via a network.

In another embodiment, if the user has an advertising supported account,the advertising server displays advertising to the user via the userinterface based upon but not limited to information obtained from themwhen they signed up, their search terms and the contents of their searchengine. The advertising server component may reside on a server orservers and communicates with the user interface component via anetwork. The advertising may be selected and served dynamically based ona match of the advertising characteristics chosen by the advertiser tothe search users characteristics.

Benefits to the searcher are as follows: The search engine describedabove is completely modular and can be controlled by an ordinary personwith no programming skill via any browser capable device including butnot limited to computers and mobile devices. With the advertisingsupported option it is free to the user making it broadly applicable.Students, librarians, teachers, and others using computers in schoolsand libraries can use it. It minimizes information clutter by providinga more efficient method to find the information desired by the user.This method of search provides information that is timelier, morerelevant, and more contextual to the user. The personal search enginecan be used anytime; anywhere there is network access for the user'sdevice. Since there is an advertising supported version that is providedat no cost to the user it is available to anyone with network access viaa browser capable device. The personal search engine is immune to searchengine spam, which is excessive manipulation to influence search enginerankings, often for pages that contain little or no relevant content. Asthe amount of information on the Web grows, the incidence of searchengine spam is increasing, as more sites compete to be noticed on searchengine results. The subject invention, furthermore, offers a solutionthat is immune to arbitrary changes in site rankings, or site indexinclusion, resulting from unannounced, undocumented changes to searchengine algorithms.

For the advertiser there are also benefits over other types of onlineadvertising. This method provides more ways to target the advertising tothe user than other methods. It is not merely targeted by the searchkeyword but can be targeted by words in the full text index of theuser's digital content data resources, and information obtained from theuser when they signed up including but not limited to demographic, andpsycho graphic information. Since all the above information is obtaineddirectly from the user it is highly targeted to their interests whichshould make it more effective advertising and provide better return oninvestment for the advertiser and result in the user finding theadvertising to provide value added to their search experience.

These and other objects and features of the present invention willbecome readily apparent from the detailed description, which is to beread in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a diagram depicting an approach for the personal search engineaccording to an embodiment.

FIG. 2 is a flow diagram depicting an approach for the personal searchengine according to an embodiment.

FIG. 3 is a diagram that depicts an approach for the advertisingsupported personal search engine over a network according to anembodiment.

FIG. 4 is a diagram that depicts an approach for the paid personalsearch engine over a network according to an embodiment.

FIG. 5 is a flow diagram that depicts an approach for sellingadvertising on the advertising supported personal search engine to theadvertising user according to an embodiment.

FIG. 6 is a flow diagram that depicts an approach for entering into anagreement with the personal search user who wants to create a personalsearch engine according to an embodiment.

FIG. 7 is a flow diagram that depicts an approach for obtaining thecharacteristics of the personal search engine from the personal searchengine user according to an embodiment.

FIG. 8 is a flow diagram that depicts an approach for building thepersonal search engine based on the characteristics specified by theuser according to an embodiment.

FIG. 9 is a flow diagram that depicts an approach to the user searchingtheir personal search engine according to an embodiment.

FIG. 10 is a flow diagram that depicts an approach for selecting theadvertisements to be displayed to the user of the advertising supportedpersonal search engine according to an embodiment.

FIG. 11 is a block diagram showing all the parts of the personal searchengine according to an embodiment.

FIG. 12 is a block diagram of a computer system upon which embodimentsof the invention may be implemented.

DESCRIPTION OF THE PREFERRED EMBODIMENT

In the following detailed description, numerous specific details are setforth in order to provide a thorough understanding of the presentinvention. It will be apparent to one of ordinary skill in the arthowever, that these specific details need not be used to practice thepresent invention. In other instances, well known structures, interfacesand processes have not been shown in detail in order not tounnecessarily obscure the present invention.

One embodiment of the present invention relates to a method and systemfor storing and delivering search indexes and search results via anetwork. FIG. 1 is a block diagram that illustrates one embodiment thatprovides personal search capability, delivers advertising, and sellsadvertising to advertisers. As used herein, the term “advertising”refers to any type of advertising that can be transmitted through anetwork to a browser-capable device. Examples of browser-capable devicesinclude, but are not limited to, personal computers, personal digitalassistants, cell telephones and other mobile devices. Examples of theadvertising described herein include, but are not limited to, textlinks, animations and digital sound files. Advertising targeting datacan include, but is not limited to, search keywords, search categories,and user demographic and psycho graphic information collected when theuser registers for the advertising supported version of the searchservice. In general, the user can determine the digital content dataresources, search criteria, depth of crawl and refresh interval fortheir personal search engine. Thus, the user is not constrained by thedigital content data resource, crawl depth and refresh intervaldecisions made by the operators of conventional search engines.

FIG. 1 shows an embodiment for a user controlled search engine system100. The system 100 includes a user 102, paid search user 110,advertiser 108, and provider 104 interconnected by link 106. Users 102and 110 are users of the search engine according to embodiments of thepresent invention. Advertiser 108 is an advertising provider thatprovides advertising for display by provider 104 and viewing by users102 and 110. Provider 104 is a search engine provider that providessearch engine functionality to users 102 and 110.

According to this embodiment, the search user 110 may pay a fee tocreate a personal search engine, and may pay additional fees forenhanced functionality, including, but not limited to, number of digitalcontent data resources, crawl depth, and refresh interval over a link106. The link 106 may be any medium for transferring data between user110 and provider 104. Examples of the link 106 include, withoutlimitation, a network such as a LAN, WAN, the Internet, atelecommunications link, a wire or optical link, or a wirelessconnection.

According to another embodiment, the user 102 creates a personal searchengine in return for agreeing with provider 104 to view advertisingbased on information the user 102 furnishes, including, but not limitedto, the user's 102 demographic data, psycho graphic data, categoriessearched by the user 102, and search terms entered by the user 102.

According to another embodiment, the user 108 buys targeted, advertisingpresentation services from provider 104. The advertising user 108 buysthe capability to target presentation of their advertising according to,but not limited to, advertising supported version search userdemographic data, psycho graphic data, search categories and searchterms entered by users of the advertising supported version of thepersonal search engine service.

FIG. 2 shows an embodiment for providing a personal search engine 200and advertising presentation services to users. After the process isinitiated (202), the user 201 indicates whether they are a personalsearch engine user or an advertiser (204). If the user 201 indicatesthat they are a personal search engine user, the process provides accessto the personal search engine function (206). The provider 203determines whether the user 201 is an advertising-supported user (208).If the provider 203 determines that the user 201 is an advertisingsupported search user, then provider 203 presents advertisement to user201 according to targeting criteria (210). User 201 provides personalsearch criteria to provider 203 (212). Provider 203 builds the personalsearch engine according to the search engine specifications provided bythe user 201 (214). User 201 conducts one or more searches forinformation using their personal search engine (216). The process isthen complete (224). If the user 201 is a user for advertisingpresentation services, then provider 203 provides user 201 with accessto the advertising purchase module (218). The user 201 provides provider203 with advertising characteristics information (220). Provider 203provides user 201 with statistics on advertising presented by provider203 to date for advertising user 201 (222). Then this process ends(224).

FIG. 3 shows another embodiment that depicts an advertising supportedpersonal search engine over a network 300. This embodiment may includean advertising user 302, an advertising supported search user 304, and aprovider 306. The users 302, 304 and provider 306 communicate throughnetwork 310 over communication links 308 and 312. The network 310 may beany type of communication network such as the Internet, an intranet, aLAN, or a WAN. The communication links 308 and 312 may be any type oflink that allows the parties to communicate with and through the network310.

In this embodiment, the advertising user 302 receives advertisingstatistics 314 from provider 306 over communication link 318.Advertising user 302 and provider 306 may exchange advertisingcharacteristics 316.

The user 304 may communicate advertising targeting information 320 toprovider 306. In response, provider 306 may communicate targetedadvertising 322 to user 304. In addition, the user 304 and provider 306may exchange search engine characteristics 324 for creating a personalsearch engine for user 304 based on the search engine characteristicsprovided. When executing a search, user 304 communicates search terms326 to provider 306. Provider 306, in turn, performs a search andcommunicates search results 328 to user 304. The performed search may beperformed based on the search engine characteristics and the searchterms provided by user 304.

FIG. 4 shows another embodiment that depicts a paid personal searchengine over a network 400. This embodiment may include a paid searchuser 402 and a provider 404. The user 402 and provider 404 communicatethrough network 410 over communication links 406 and 408. The network410 may be any type of communication network such as the Internet, anintranet, a LAN, or a WAN. The communication links 406 and 408 may beany type of link that allows the parties to communicate with and throughthe network 410.

In this embodiment, the user 402 communicates payment information 412 toprovider 404 over communication link 414. After payment information 412has been received and processed, user 402 and provider 404 may exchangesearch engine characteristics 416 for creating a personal search enginefor user 402 based on the search engine characteristics provided. Whenexecuting a search, user 402 communicates search terms 418 to provider404. Provider 404, in turn, performs a search and communicates searchresults 420 to user 402. The search may be performed based on the searchengine characteristics and the search terms provided by user 402.

FIG. 5 shows another embodiment that depicts the process whereby anadvertising user 505 buys advertising and enters the characteristics ofthat advertising which will be shown over a network. After the processis initiated (502), provider 503 determines whether this is a new orreturning advertising user (504). If the advertising user 505 is a newuser, the user buys advertising on the advertising supported personalsearch engine by entering into an advertising agreement with theprovider 503 (508). The advertising user 503 provides thecharacteristics of the advertising to be purchased including but notlimited to text, graphics, animation or audio to display, linkclick-through location, search key words for advertisement display,searcher demographic and psycho graphic for advertisement display, priceof advertising, amount of advertising, method of payment and searchcategory (510). If multiple advertising users 505 want the samecharacteristics they can competitively bid on them. Advertising users505 with higher bids will have their ads display first or in a morevisible position on the user interface. When the advertising user 505has completed entering his information, the provider 503 stores theadvertising user's 505 advertising characteristics (512). The process isthen complete (514).

If the advertising user 505 is a returning advertising user, provider503 determines if the advertising user 505 wants to change the storedadvertising characteristics (506). If the advertising user 505 does notwant to change his advertising characteristics, the process is thencompleted (514).

If the advertising user 505 wants to change the stored characteristics,the provider 503 displays the advertising user 505's current advertisingcharacteristics via the user interface including but not limited totext, graphics, animation or audio to display, link click-throughlocation, search key words for advertisement display, searcher psychographic and demographic for advertisement display, price of advertising,amount of advertising, method of payment and search category (512).Alternatively, the provider 503 can display the stored characteristicsbefore the user 505 determines if they want them changed (506). Thereturning advertising user 505 updates the characteristics of theadvertising to be purchased including but not limited to to text,graphics, animation or audio to display, link click-through location,search key words for advertisement display, searcher psycho graphic anddemographic for advertisement display, price of advertising, amount ofadvertising, method of payment and search category (510). When theadvertising user 505 has completed entering his information, theprovider 503 stores the update to the advertising user's 505 advertisinginformation (512). This process ends in step 514.

Search User Agreement Process

FIG. 6 is a flow diagram that depicts the personal search user agreementprocess. Provider 603 determines whether this is a new or returningsearch user 601 (604). If the search user 601, is a returning searchuser the provider 603 queries the search user if he wants to upgrade hisaccount (606). If the search user 601 wants to upgrade his account thesearch user 601 enters into an upgrade paid personal search accountagreement with the provider 603 (610). This account upgrade consists ofbut is not limited to an upgrade of an advertising supported personalsearch account to a paid account. The paid account permits the searchuser 601 to use more resources for his personal search engine and tohave a personal search engine without advertising display. In this waythe advertising supported search user 601 becomes a paid search user.

If the provider 603 determines that the search user 601 is a new searchuser 601 (604), then the provider 603 queries the user 601 to determineif the search user 601 wants a paid or an advertising-supported personalsearch account (608). If the search user 601 wants a paid personalsearch account, then search user 601 enters into a paid personal searchagreement with the provider 603 (610). The search user 601 can pay theprovider 603 for the paid personal search account by means consisting ofbut not limited to credit cards, debit cards or online electronicpayment systems such as Paypal. The provider 603 displays the terms ofuse and privacy statements to the search user 601 and the search user603 must agree to terms of use and privacy statement (610).

If the search user 601 wants an advertising supported personal searchaccount, the search user 601 enters into a advertising supportedpersonal search agreement with the provider 603 (612). The advertisingsupported search user 601 may provide the provider 603 with informationabout the advertising supported search user 601 and the user's search inreturn for the account. This information may include but is not limitedto demographic information about the search user 601, psycho graphicinformation about the search user 601, category information about theadvertising supported search user's 601 search and permission to use theadvertising supported search user's 601 searches and search enginecontent for purposes including but not limited to targeted advertising.The advertising supported search user 601 may agree to the provider's603 terms of use and privacy policy for advertising supported personalsearch. This process is complete (614).

Obtain Personal Search Engine Characteristics from User Process

FIG. 7 is a flow diagram that depicts the process where the search user701 provides the provider 703 with the characteristics of his personalsearch engine. The search user 701 provides his search enginecharacteristics to the provider 703 (704). These characteristics mayinclude but are not limited to the digital content data sources to becrawled and indexed, the crawl criteria for these digital content datasources and the time interval to refresh the digital content index inthe personal search engine. These digital content data sources mayinclude, but are not limited to hypertext markup language (HTML) pages,uniform resource locator (URL) names or numbers, Web sites and textfiles in various formats. The search user 701 provides the path to findthese files over a network. The network may include but is not limitedto the Internet and intranets. The crawl criteria may include but arenot limited to the number of links from the initial digital contentresource to crawl (link depth) and the time interval to refresh thedigital content resource data in the personal search engine (re-crawlthe digital content data sources). The provider 703 checks the searchuser's 701 search engine characteristics against the limits for thosecharacteristics for the search user's account (706). Thesecharacteristics may include but are not limited to number of digitalcontent data resources such as web sites, HTML files and text formatfiles to crawl, the link depth from the initial digital content resourceto crawl and the crawl refresh interval. If the personal search enginecharacteristics are within the search user's 701 account limits, theprovider 703 stores the search user's 701 personal search enginecharacteristics (708). If the search user 701 has exceeded the limits ofhis account with any of the characteristics of his search engineincluding but not limited to the number of digital content dataresources such as web sites, HTML files and text format files to crawl,the link depth from the initial digital content resource to crawl andthe crawl refresh interval, the provider 703 offers to upgrade thesearch user's 701 account to raise the search user's 701 account limitsfor the characteristics of his search engine including but not limitedto number of digital content data resources such as web sites, HTMLfiles and text format files to crawl, the link depth from the initialdigital content data resource to crawl and the crawl refresh interval(710). If the search user 701 upgrades his account the search user 701may add additional characteristics to his personal search engine up tothe limits of his upgraded account including but not limited to thenumber of digital content data resources such as web sites, HTML filesand text format files to crawl, the link depth from the initial digitalcontent data resource to crawl and the crawl refresh interval (712).This process is complete (714).

Build Personal Search Index Process

FIG. 8 is a flow diagram that depicts how a personal search index isbuilt according to one embodiment. The provider 803 builds the personalsearch index for the search user 801 according to the search user's 801characteristics for their personal search engine. The provider 803checks the search user's 301 search engine characteristics to determineif the provider 803 should refresh the user's 801 personal search engine(804). If the provider 803 determines that it is time to refresh thesearch user's 801 personal search engine (806), the provider 803 crawlsthe search user's 801 digital content data resources to the searchuser's 801 personal search engine characteristics over the network(808). These characteristics may include but are not limited tospecified link depth and refresh interval. The network may be but is notlimited to the Internet or an intranet. The provider 803 stores thecrawled text data that was sent back to the provider 803 via the network(810). The provider 803 creates a full text index from the crawleddigital content resource data to create the search user's personalsearch engine (812). This process is complete (814).

User Searches Personal Search Engine Process

FIG. 9 is a flow diagram that depicts the process where the search user901 searches their personal search engine according to one embodiment.The search user 901 enters their search term(s) and they are sent to theprovider 903 via a network, which may be but is not limited to theInternet or an intranet (904). The provider 903 searches the searchuser's 901 personal search engine for digital content resources matchingthe search term (906). The provider 903 checks if this search user 901is an advertising supported personal search user 901 (908). If thesearch user 901 is an advertising supported personal search user 901,the provider 903 displays advertising to the advertising supportedsearch user 901 according to the advertising criteria obtained from theadvertising user 905 by the provider 903 (910). The targeting for thisadvertisement may be but is not limited to contextual, demographic, andpsycho graphic characteristics of the advertising supported search user901 and his search engine. The advertising is sent to the advertisingsupported search user 901 via a network, which may be but is not limitedto the Internet or an intranet. The advertising format may be but is notlimited to text links and graphic ads. It may be presented anywhere onthe page where it can be seen by the advertising supported personalsearch user 901. The provider 903 returns the search results to theadvertising supported search user 901, via the network (912). The searchresults may be organized or ranked in some way for presentation to thesearch user 901 including but not limited to search term frequency inthe digital content data resource. This process ends (914).

Display Ads to Advertising Supported Search User Process

FIG. 10 is a flow diagram that depicts a process to display advertisingto the advertising supported personal search user 1001 according to oneembodiment. The ads may be displayed over a network. The provider 1003receives data about the search user 1001 and the search user's 1001search via a network.

This data may include but is not limited to demographic informationabout the search user 1001, psycho graphic information about the searchuser 1001, category information about the search user's 1001 search, thekeywords the search user 1001 is searching for and the information inthe search user's 1001 personal search engine. The provider 1003compares the search user's 1001 information and search terms withadvertising targeting criteria (1006). If the search user's 1001information matches the advertising user's 1005 ad targetingcharacteristics (1008), the provider 1003 displays matching ads to theadvertising supported search user 1001 over the network (1010). Theprovider 1003 may gather and provide statistics about the advertisingfor the advertising user 1005 including but not limited to the number ofclicks each advertisement has received by date and time interval and thenumber of times each ad has been shown by date and time interval and thecost of the advertising to date. This process ends (1012).

Personal Search System Block Diagram

FIG. 11 is a block diagram, which shows one embodiment of a personalsearch system. As shown a personal search system may include a browsercapable device 1102, a network component 1106 and server basedcomponents 1108.

The browser capable device 1102 provides the user interface component1104 for the personal search system. The browser capable device 1102 mayinclude but is not limited to personal computers, PDAs, cell phones andother mobile devices. The personal search system communicates with theuser via the user interface 1104 on the browser capable device 1102.

The network component 1106 connects the browser capable device 1102 tothe server based components 1108 and permits them to communicate. Thenetwork component 1106 may include but is not limited to the Internet,an intranet or a wireless network.

The server components 1108 of the personal search system may include adatabase component 1110, a link crawler component 1112, a search enginecomponent 1114, a full text index component 1116 and an ad servercomponent 1118. The database component 1110 stores information which,may include the search engine characteristics of the search user and theadvertising characteristics of the advertising user of the personalsearch system. These characteristics are received from the userinterface component 1104 on the browser capable device 1102 via thenetwork component 1106. The link crawler component 1112 crawls thedigital content data resources, which are part of the search user'spersonal search engine characteristics according to crawl specificationsin the search engine characteristics entered by the search user via theuser interface component 1104 and stored in the database component 1110.These crawl characteristics may include but are not limited to the linkdepth to crawl from the starting digital content data resource, and thecrawl refresh interval.

The link crawler component 1112 returns data from the digital contentdata resources it crawled, which is stored in the full text, indexcomponent 1116. The full text index component 1116 indexes that datawhich makes it searchable by the search user using the search enginecomponent 1114. The search user enters his search terms via the userinterface component 1104 on the browser capable device 1102. The networkcomponent 1106 sends the search term to the server components 1108 andmore specifically to the search engine component 1114. The networkcomponent 1106 then sends the search results from the search enginecomponent 1114 back to the search user to be displayed on the userinterface component 1104 that is on the browser capable device component1102.

For the ad supported embodiment of the personal search system the adserver component 1118 which is part of the server based components 1108retrieves and displays ads which have been purchased by the advertisinguser via the user interface component 1104 where the advertisingcharacteristics match the characteristics of the advertising supportedsearch user and their search. These characteristics may include but arenot limited to demographic information about the search user, psychographic information about the search user, category information aboutthe search user's 304 search, the keywords the search user is searchingfor and the information in the search user's personal search engine.

There is a benefit to the modular nature of the personal search systemwhich makes it more flexible and expandable than a less modular system.Specific components may be changed or replaced with others to provideenhanced functionality or broader application. For example the linkcrawler component 1112 may be changed or replaced to enable it to crawltypes of dynamic links that it could not crawl previously. This wouldenhance its functionality and the functionality of the whole personalsearch system because it could retrieve digital content resources forsearch that it could not retrieve before. Likewise the full text indexcomponent 1116 and the search engine component 1114 may be replaced orchanged to process additional languages not previously supported by thepersonal search system thereby enhancing its functionality.

Implementation Mechanisms

FIG. 12 illustrates a typical computer system 1200 in which oneembodiment of the present invention can operate. One embodiment of thepresent invention is implemented on personal computer architecture. Itwill be apparent to those of ordinary skill in the art that otheralternative computer system architectures, and other devices with thecapability to interface with networks may also be employed.

In general, such computer systems as illustrated by FIG. 12 comprise abus 1202 for communicating information, a processor 1204 coupled withthe bus 1202 for processing information, main memory 1206 coupled withthe bus 1202 for storing information and instructions for the processor1204, a read-only memory 1208 coupled with the bus 1202 for storingstatic information and instructions for the processor 1204, a displaydevice 1212 coupled with the bus 1202 for displaying information for acomputer user, an input device 1214 coupled with the bus 1202 forcommunicating information and command selections to the processor 1204,and a storage medium 1212 coupled with the bus 1202 for storinginformation and instructions. The data storage medium 1210, such as amagnetic disk and associated disk drive, containing digital informationis configured to allow processor 1204 access to the digital informationon the storage medium 1210 via bus 1202.

Processor 1204 may be any of a wide variety of general-purposeprocessors or microprocessors such as the Pentium brand processormanufactured by Intel. Corporation. It will be apparent to those ofordinary skill in the art, however, that other varieties of processorsmay also be used in a particular computer system. Display device 1212may be a liquid crystal device, cathode ray tube (CRT), or othersuitable display device. Storage medium 1210 may be a conventional harddisk drive, floppy disk drive, CD-ROM drive, or other magnetic oroptical data storage device for reading and writing information storedon a hard disk, a floppy disk, a CD-ROM, a magnetic tape, or othermagnetic or optical data storage medium. Data storage medium 1208 may bea hard disk, a floppy disk, a CD-ROM, a magnetic tape, or other magneticor optical data storage medium.

In the foregoing specification, the invention has been described withreference to specific exemplary embodiments thereof. Many changes ormodifications are readily envisioned. The specification and drawingsare, accordingly, to be regarded in an illustrative rather than in arestrictive sense. It will, however, be evident that variousmodifications and changes may be made thereunto without departing fromthe broader spirit and scope of the invention as set forth in theclaims.

What is claimed is:
 1. A system for delivering personal search engine software services, the system comprising: a personal search engine delivered as a software service over a network, generated according to at least one search engine characteristic received from a remote browser device and configured to crawl, full text index and search at least one digital content resource according to the at least one search engine characteristic; the personal search engine is configured to receive at least one search keyword; the personal search engine is configured to enable a user to build the personal search engine by selecting the digital content resources in the personal search engine; at least one database configured to store the at least one search engine characteristic and at least one user characteristic; and a display module configured to display search results on a display device when the at least one search keyword is identified within the at least one digital content resource in the personal service engine.
 2. The system of claim 1, wherein the personal search engine is configured such that two or more modules of the personal search engine are distributed to reside at different servers.
 3. The system of claim 1, further comprising an account status module configured to determine a status of an account of a user.
 4. The system of claim 3, wherein the account status module determines whether an account for the personal search engine is an advertising supported personal search account; and if the account is an advertising supported personal search account, the account status module generates terms for a paid account to present to a user, wherein the paid account provides personal search engine services without displaying advertisement when the search results are displayed on the display device.
 5. The system of claim 3, wherein the personal search engine is configured having at least one account limit; wherein the account status module determines whether the at least one search engine characteristic exceeds any of the at least one account limits; and if the search engine characteristic exceeds any of the at least one account limits, the account status module generates terms for an upgraded account to present to the user, wherein the upgraded account increases the account limits for characteristics of the personal search engine.
 6. The system of claim 1, wherein the personal search engine comprises modular software components.
 7. The system of claim 6, wherein the modular software components are configured such that a software module following at least one link is replaceable, during a crawl, by another software module having a superior link following capability.
 8. The system of claim 1, wherein the personal search engine is built on high quality digital content resources selected by the user.
 9. The system of claim 8, wherein, based on the at least one search keyword, the personal search engine retrieves the search results from the user selected high quality digital content resources.
 10. The system of claim 1, wherein the personal search engine is built on high quality digital content resources selected by the user, eliminating low quality digital content resources and spam digital content resources.
 11. The system of claim 1, further comprising: an advertising module configured to receive advertising characteristics from a plurality of advertisers, wherein the advertising characteristics provide characteristics of the advertising to be purchased for advertisement display; when at least two of the advertisers submit substantially similar advertising characteristics, the advertising module conducts a competitive bid auctioning process; the at least one database is further configured to store at least one advertising characteristic; and a display module configured to display the purchased advertisement on a display device when the at least one advertising characteristic matches at least one of the at least one user characteristic, the at least one search engine characteristic, and the at least one search keyword.
 12. The system of claim 11, wherein the advertising characteristics comprises at least one of text, graphics, animation and/or audio display, link click-through location and search keywords for the advertisement display.
 13. The system of claim 11, wherein the purchased advertisements comprises an animated with audio advertisement display.
 14. A method for delivering personal search engine software services, the system comprising: providing a personal search engine delivered as a software service over a network, generated according to at least one search engine characteristic received from a remote browser device and configured to crawl, full text index and search at least one digital content resource according to the at least one search engine characteristic; receiving at least one search keyword at the personal search engine; building the personal search engine by enabling a user to select the digital content resources in the personal search engine; storing, in at least one database, the at least one search engine characteristic and at least one user characteristic; and displaying search results on a display device when the at least one search keyword is identified within the at least one digital content resource in the personal search engine.
 15. The method of claim 14, wherein the personal search engine is configured such that two or more modules of the personal search engine are distributed to reside at different servers.
 16. The method of claim 14, further comprising: determining whether an account for the personal search engine is an advertising supported personal search account; and if the account is an advertising supported personal search account, generating terms for a paid account to present to a user, wherein the paid account provides personal search engine services without displaying advertisement when search results are displayed on the display device.
 17. The method of claim 14, further comprising: establishing at least one account limit for the personal search engine; determining whether the at least one search engine characteristic exceeds any of the at least one account limit; and if the search engine characteristics exceeds any of the at least one account limits, generating terms for an upgraded account to present to the user, wherein the upgraded account increases the account limits for characteristics of the personal search engine.
 18. The method of claim 14, further comprising: providing modular software components in the personal search engine, wherein the modular software components are configured such that a software module following at least one link is replaceable, during a crawl, by another software module having a superior link following capability.
 19. The method of claim 14, further comprising building the personal search engine based on high quality digital content resources selected by the user that eliminates low quality digital content resources and spam digital content resources.
 20. The method of claim 14, further comprising: providing an advertising module configured to receive advertising characteristics from a plurality of advertisers, wherein the advertising characteristics provide characteristics of the advertising to be purchased for advertisement display; when at least two of the advertisers submit substantially similar advertising characteristics, the advertising module conducts a competitive bid auctioning process; the at least one database is further configured to store at least one advertising characteristic; and displaying the purchased advertisement on the display device when the at least one advertising characteristic matches at least one of the at least one user characteristic, the at least one search engine characteristic, and the at least one search keyword. 